... ,save,load,print the measurements·Waveforms and waveform parameters can be displayde on the screen at the same time. ... parameters(such as PMS,peak-peak,means,frequency,period and so on,)according to the needs·High distinguishable crystal display. ... ·With compact,convenient,full functional operating menu·Portable hand-held instrument·Saving and recalling function·Power Source:3.6V rechargeable lithium ...